package com.example.demo.controller;

import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
@RequestMapping("calc")
public class CalcController {

    @RequestMapping("/sum")
    public String add(Integer num1,Integer num2){
        if (num1 == null || num2 == null){
            return "输入的值不合法，请检查后重新输入";
        }
        Integer sum = num1 + num2;
        return num1 + " + " + num2 + " = " + sum;
    }

}
